GB/T 34912-2024 Chinese PDF (GB/T34912-2024) GB/T 34747-2024 GB/T 45249
$61.95
Description
GB/T 45249
GB/T 45071-2024_Chinese: Classification and gradation of protected areas (Chinese: 自然保护地分类分级)
English versions: GB 31830-2024
GB/T 45595-2025_Chinese: Centrifugal refrigerant compressors (Chinese: 离心式制冷剂压缩机)
GB/T 34912-2024 Chinese PDF (GB/T34912-2024) GB/T 34747-2024 GB/T 45249GB T 34912 2024_Chinese: Guide for energy saving design of industrial boiler systems (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 34912 2024
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